| 人工神经网络在海浪数值预报中的应用 |
| |
| 引用本文： | 齐义泉,张志旭,李志伟,李毓湘,施平.人工神经网络在海浪数值预报中的应用[J].水科学进展,2005,16(1):32-35. |
| |
| 作者姓名： | 齐义泉 张志旭 李志伟 李毓湘 施平 |
| |
| 作者单位： | 1.中国科学院南海海洋研究所LED重点实验室, 广东, 广州, 510301; |
| |
| 基金项目： | 国家自然科学基金资助项目(49976006)~~ |
| |
| 摘 要： | 探讨将人工神经网络技术和传统的数值模式相结合,以期得到一个更有效的海浪预报方法.以第3代海浪模式的模拟结果作为输入,浮标观测资料作为输出,采用人工神经网络进行训练,训练的初步结果显示,人工神经网络可以改进海浪数值模式的预报精度,但在波高比较大时,改进的效果并不令人满意.为此,对观测值大于1.5m时的有效波高进行再训练,从而结果有了进一步的改善.研究结果证明人工神经网络技术可以提高海浪数值预报的精度.
|
| 关 键 词： | 人工神经网络 海浪数值模式 有效波高 数值预报 |
| 文章编号： | 1001-6791(2005)01-0032-04 |
| 收稿时间： | 2003-11-19 |
| 修稿时间： | 2003年11月19 |
Application of artificial neural network to numerical wave prediction |
| |
| QI Yi-quan,ZHANG Zhi-xu,LI Chi-wei,LI Yok-sheung,SHI Ping.Application of artificial neural network to numerical wave prediction[J].Advances in Water Science,2005,16(1):32-35. |
| |
| Authors: | QI Yi-quan ZHANG Zhi-xu LI Chi-wei LI Yok-sheung SHI Ping |
| |
| Institution: | 1.Led, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;2.Hong Kong Polytechnic University, Hong Kong, China |
| |
| Abstract: | The objective of this paper is to use an artificial neural network (ANN) model to train the output of a third generation wave model to better forecast the significant wave heights from buoy data. After training, the agreement between the wave model's output and the buoy data generally increases, but there is still significant disagreement when the wave height is at its peak. The significant wave heights bigger than 1.5m are selected to retrain, using the same ANN model, and the resulting improvement in the forecast is obvious since the root mean square error (RMS) between the ANN output and the buoy data decrease from 0.31 m to 0.29 m. The goal of this paper is to investigate the feasibility of using an ANN to improve a wave (model's) numerical wave prediction so as to develop a more accurate wave forecasting system. The results show that an ANN is an useful tool for this purpose. |
| |
| Keywords: | artificial neural network numerical wave model significant wave height numerical prediction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
| 点击此处可从《水科学进展》下载免费的PDF全文 |
|
